Forum: Math
2012-03-20, 17:00
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Replies: 15
Views: 2,014
True, Dr.. It's odd that they use the terms...
True, Dr.. It's odd that they use the terms interchangeably at MathWorld. They do the same for the Miller-Rabin test.
Would you have anything on-line regarding that search?
Gammatester: ...
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Forum: Math
2012-03-20, 15:12
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Replies: 15
Views: 2,014
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Forum: Science & Technology
2010-05-24, 13:59
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Replies: 20
Views: 3,617
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Forum: Factoring
2010-03-11, 16:28
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Replies: 84
Views: 9,592
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Forum: Lounge
2010-01-26, 18:15
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Replies: 289
Views: 13,950
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Forum: Math
2009-11-10, 20:44
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Replies: 2
Views: 488
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Forum: Math
2009-11-10, 17:25
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Replies: 2
Views: 488
Useful Identity?
I was fiddling around with WolframAlpha the other day and came across this identity:
(x^(n+3)+x^n + x + 1) = (x+1)*(x^(n+2)-x^(n+1)+x^n+1)
I hadn't seen it before and I was wondering if it's...
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Forum: Software
2009-10-29, 01:44
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Replies: 6
Views: 565
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Forum: Math
2009-10-07, 01:38
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Replies: 6
Views: 418
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Forum: Math
2009-10-06, 14:43
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Replies: 6
Views: 418
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Forum: Math
2009-10-06, 01:45
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Replies: 6
Views: 418
Phi Question
I was wondering if there's a conjecture or proven theorem for the following:
For every integer m > 1, there exists a positive integer n, such that are exactly
m different positive integers x...
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Forum: Programming
2009-10-01, 02:14
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Replies: 7
Views: 7,957
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Forum: Programming
2009-10-01, 01:03
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Replies: 7
Views: 7,957
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Forum: Programming
2009-10-01, 00:28
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Replies: 7
Views: 7,957
Mea culpa
Sorry, I see my error.
I was doing calculations with an "unsigned long int" and wasn't doing an apparently necessary cast to "unsigned long long int". Both using the long long type and...
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Forum: Programming
2009-09-30, 23:57
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Replies: 7
Views: 7,957
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Forum: Math
2009-09-23, 03:30
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Replies: 11
Views: 1,057
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Forum: Math
2009-09-20, 16:31
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Replies: 11
Views: 1,057
Actually ther\ latter relation is precisely for...
Actually ther\ latter relation is precisely for what I'm looking to find solutions (for i=1,2 ... k where k>=6 and all the variables involved are integers). And, there's no need to square both sides...
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Forum: Math
2009-09-16, 22:38
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Replies: 11
Views: 1,057
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Forum: Math
2009-09-16, 16:51
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Replies: 11
Views: 1,057
Thank you both for your feedback.
I wonder...
Thank you both for your feedback.
I wonder if a better tack would be to check if one (or more) of these polynomials (in three variables: n,d and k) can be factored into two smaller polynomials...
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Forum: Math
2009-09-16, 13:36
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Replies: 11
Views: 1,057
Diophantine Question
I have a 4th degree polynomial F(k) and I'm looking for a algorithm/heuristic to find solutions of the form: f(k) = r^2 where k, r, and F(x)'s coefficients are all integers.
(I'm looking for...
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Forum: Programming
2009-05-24, 21:44
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Replies: 4
Views: 706
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Forum: Puzzles
2008-12-06, 06:05
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Replies: 16
Views: 1,244
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Forum: Puzzles
2008-12-05, 15:32
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Replies: 16
Views: 1,244
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Forum: Puzzles
2008-12-05, 05:46
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Replies: 16
Views: 1,244
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Forum: Puzzles
2008-12-04, 22:28
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Replies: 16
Views: 1,244
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